L26 



HEREDITY AND SEX 



blance bo butterflies of other species that are protected, 

 namely, Papilio aristolochia and P. hector. These 



Fig. (i4. — Papilio polytes ; male (upper left) and three types of female 

 (to right). The "models," which two of these females are supposed to 

 "mimic," arc shown to t licir left. (After Punnett.) 



two feed on the poisonous plant aristolochia and are 

 said to be unpalatable. The two aberrant types of. 

 P. polytes bearing a close resemblance to these two 



